Sharp LC-39LE751EK (serv.man3) Service Manual ▷ View online
113
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
39” / 50”
Key Unit Diagram
(DUNTKG221WE02)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
I
H
G
F
E
D
C
B
A
VOL+
INPUT
VOL-
CH-
CH+
POW
3D
BLUE
IR
POWERON
POWERON
MENU
GUARDA
RED
12VD
KEYS
D5105
PXA239WJ
D5103
PXA238WJ
D5109
PXA235WJ
D5108
PXA235WJ
D5107
PXA235WJ
D5112
PXA235WJ
D5111
PXA235WJ
D5110
PXA235WJ
IXD572WJ
PIC6LF1503
PIC6LF1503
1
VDO
2
RAS
3
AN3
4
MCLR
5
RC5
6
RC4
7
AN7
8
AN6
9
AN5
10
AN4
11
AN2
12
AN1
13
DAC
14
GND
120u
16V
C5110
NA345WJ
P5101
1
GND
2
KEY2
3
LIGHT SENSOR
4
KEY1
5
GREEN LED
6
WHITE LED
7
IRIN
8
BU+3.3V
9
BLUE LED
10
3D
11
RED LED
R5118
10K
R5119
3.3K
C5103
10u
6.3V
C5106
10u
6.3V
C5111
0.1u
C5109
0.1u
+12V
Q5100
2SC3928AR
Q5101
2SC3928AR
D5106
RB162M40
RB162M40
P5100
MCUA113WJ
1
2
3
4
R5115
10
C5107
100P
R5110
100
C5105
0.1u
BU+3.3V
BU+3.3V
+12V
R5117
47
R5116
470
R5121
10K
R5113
10K
R5120
10K
R5114
10K
R5125
10K
Q5103
2SD2657
Q5102
2SD2657
C5108
0.47u
R5122
1K
R5123
1K
R5127
10K
+12V
BU+3.3V
D5102
EXA741WJQZ
C5101
0.1u
FB5100
A529WJ
A529WJ
C5100
2.2u
16V
VDD
BU+3.3V
R5108
100
C5104
0.1u
R5124
0
TQ
R5126
2.4
TQ
R5128
2.4
TQ
R5109
10K
C5102
0.1u
BU+3.3V
R5107
1K
D5100
EXA741WJQZ
R5100
3.9K
R5101
3.9K
R5102
3.9K
R5103
3.9K
R5104
3.9K
R5105
3.9K
R5106
3.9K
TL5104
TL5106
TL5103
TL5102
TL5101
TL5105
TL5100
TL5121
TL5122
TL5119
TL5118
TL5117
TL5116
TL5115
TL5114
TL5113
TL5112
TL5120
TL5107
TL5108
TL5109
TL5110
TL5111
R5129
3.9K
TL5123
+12V
BU+3.3V
1 MCLR
2 +3.3V
3 GND
4 ICSPDAT
5 ICSPCLK
6 NC
POWER
MENU
INPUT
CH +
CH -
VOL +
VOL -
SC5100
IC5100
DUNTKG221WE01
114
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
PRINTED WIRING BOARD
Main Unit PWB 1/4 (QPWBXG135WJZZ B)
Side
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
I
H
G
F
E
D
C
B
A
P9601
X3301
1
SC2601
1
SC2603
A
T
IC552
1
IC4401
1
8
A
T
A
T
C3547
C9517
T9501
1
IC8401
FB4402
C1317
1
11
1
IC3301
IC9603
FB9617
FB3302
C9622
FB9607
FB9604
IC9609
FB9614
IC9606
IC3303
IC9701
FB9701
C2729
C2749
FB2713
FB2711
L2704
P2702
L2703
L2702
L2701
P3800
IC9608
X3800
FB2707
SC3801
IC3801
J3800
FB3802
D3804
IC3800
CN501
SC1502
Q1501
D1510
D1507
D1505
IC1506
C1520
SC1503
D1504
D1501
D1511 D1515
SC1504
IC1505
IC503
FB1501
FB1502
Q1502
J552
FB501
FB505
SC501
D504
X3301
J502
J551
SG513
SG567
D501
IC1104
C1111
L1107
IC9605
C9639
FB9613
FB1102
FB1103
C1130
IC1103
FB1106
L1303
C1313
C1312
D1301
C1320
FB1308
C1316
IC1102
TU1102
FB1301
R1379
J2702
J9552
L9553
IC9553
X9551
C537
C9577
FB9552
D9551
C9556
CN502
J9551
SC1501
L551
D551
R9551
C9560
IC9551
IC9552
L9554
C1305
L1301
L1302
D1302
P2704
IC1510
C2724
R9409
Q9403
C2751
SC552
C8403
IC4402
L9602
C9601
C9602
FB9606
C3335
C9619
C9618
C9617
R4421
IC4404
C4409
C4406
IC4403
R4417
IC9400
X9400
C9425
D9401
D9402
D9402
R9447
IC9501
FB9503
D9501
C9513
C9505
R9501
CN9402
T9401
CN9401
P3302
C9441
FB9402
S3301
C3333
IC3302
R9529
R4420
C4407
IC9601
L9601
C3305
P3301
FB9609
C9608
IC3503
C3506
R3503
R4402
R4428
R4405
R4410
R4428
R4405
R4410
R4407
R4427
R4406
R4427
R4406
R4411
R4409
R4409
R3378
IC3501
C3550
IC3502
R2663
R2655
L9701
C9701
R9437
R8418
R8411
R8412
R8413
J9501
D1516
D1509
R1378
D557
D556
a
QPWBXG135WJZZ
DUNTKG135
UART
JTAG
IC1106
X1101
Q1101
FB1101
R2749
B
1
4
P2705
1
5
P9501
D559
IC2701
FB2714
1
4
1
6
1
4
6
FB3304
IC9602
D560
D561
D562
FB2702
FB2708
C9702
L2705
R2750
R2740
IC1301
1
5
P9502
L9555
115
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
Main Unit PWB 2/4 (QPWBXG135WJZZ B)
Side A Chip Parts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
I
H
G
F
E
D
C
B
A
IC9603
C9622
FB9603
FB9604
P9601
C9704
C9703
FB9602
FB9607
R9603
R9649
R9642
C9708
R9614
C1502
R1502
C9662
IC9609
R9619
R9702
C9709
X3301
SC2603
L2601
L2602
L2603
L2604
L2605
L2606
L2607
L2608
L2609
L2610
L2611
L2612
L2613
L2614
L2615
L2616
L2617
L2618
L2619
L2620
L2621
L2622
L2623
L2624
IC3502
FB9614
R2655
R2657
R2658
R9703
R605
R608
R609
C9601
C9602
R610
C9608
C9609
C4401
C9610
C9614
C9615
C9616
C9619
C4412
R9606
C600
IC9602
R4404
C607
IC4401
C609
R9611
R4413
R4418
R4420
R4420
R4426
R4428
C2724
C2727
C2728
C2751
C3506
R3503
R3314
R3315
IC3501
C3548
C3549
SG563
SG565
IC9501
L9602
R572
R573
R596
C573
R8404
C593
R8409
C595
IC8401
R8412
R8413
R8413
R8414
D557
FB4402
R4411
IC4403
R2713
R2714
R2716
C3333
C1501
C1503
C1311
C1312
C1314
C1319
R606
C1130
R1109
C1519
D1301
D1302
R1301
C1520
C1521
R1113
R1114
R1308
R1501
R1311
R1506
IC1505
C605
IC9605
P2702
C606
C9636
C9637
J9551
C2706
C2708
C2708
FB9552
FB9554
R1376
R1377
C2729
R2704
R2708
R2709
L9551
L9552
C2749
FB502
FB503
FB504
FB506
FB507
FB508
R503
R504
R510
SG558
FB1307
FB1501
R540
FB9613
R551
R552
C9551
C9557
C9561
C538
D9551
C9576
R582
C9577
R9551
R9552
R9553
R9554
R9555
R9556
IC9551
FB2707
R590
R9450
C559
R9561
R9462
C560
D501
D504
L2701
L2702
L2703
L2704
C589
C1306
C1307
C4406
R1104
IC1104
C1137
C1397
L1101
SC1502
SC1503
SC1504
VA1508
C1102
C1104
IC9606
IC3303
IC9701
SC2601
X3800
IC3800
SC3801
IC9608
P3800
D3806
D3805
FB3807
FB3808
FB3809
D3804
D3801
D3800
IC3801
D3803
D3802
FB3801
FB3800
CN501
Q1501
D1505
D1507
D1501
D1504
IC503
D502
Q1502
D503
D1515
L1107
C1111
Q1101
X1101
IC1106
L1106
L1105
IC1103
IC1102
R1116
R1117
R1118
C1313
IC1301
C1320
C1317
C1315
FB1302
L1302
C1305
L1303
L1301
C9560
FB9553
P2704
C9556
IC9552
L9554
X9551
IC9553
C9574
CN502
L551
IC1510
D1516
R9409
SC1501
IC552
C572
C9618
C9617
IC4404
C4407
R4421
IC4402
C3335
IC3503
IC9400
R9436
R9437
X9400
C9505
FB9503
D9501
T9501
C9425
T9401
CN9402
C9517
Q9404
P3302
S3301
IC3302
C4409
P3301
C3305
C3547
IC9601
L9601
IC3301
C3321
C3303
FB3302
C9625
FB9617
FB3304
C9620
FB9701
C9706
C9623
FB2713
R9452
FB2711
FB2709
C3800
C9445
FB2714
L9701
C9702
C9701
C2709
FB505
FB501
C9649
C9651
FB3802
D505
D506
D507
D508
FB513
FB514
FB515
FB516
FB509
FB510
FB511
FB512
D1510
IC1506
FB1502
FB1103
FB1104
FB1105
C9639
FB1102
FB1101
FB1301
C1316
FB1308
C537
C9575
D551
L9553
IC1512
IC1511
R9474
D1509
C8403
FB9402
C9441
R9529
R9530
C4404
FB9606
FB9609
C9613
C9605
R2663
R2667
R2644
R2661
R2660
R2660
R2659
R2662
R2668
R2665
R9615
R9604 R9605
R9604 R9605
R9704
R3367
R3368
R3368
R3826
R3812
C3803
C3802
C3803
C3802
C3805
C3804
C3804
R3804
C524
R3803
R3800
R3802
R507 R513
R501
C521
C518
C520
R533
SG512 SG504 SG509
R534
R1507
VA1503
VA1504
C1505
R1514
R1514
R1540
R1552
R1539
R1571
R1572
R1557
VA1505
VA1506
R1538
C1524
R1569 R1512 R1570
R1510
R1558
VA1508
D1512
D1506
D1508
R1388
C1103
C1101
C1112
C1113
C1115
L1103 C1106
R1103
R1105
C1122
C1118
C1117
R1106
R1378
R1379
R1379
R9569
R9565
R9563
C9572
R9566
R9567
R9568
C9562
C9571
C9568 R9560 C9566
R9559
C9552
VA9556 VA9555
C564
R559
C555
C551
C551
R558
R553
R553
C563
C561
C557
C556
C561
C557
C556
SG569
SG566
SG566
SG576
SG575
C554
SG575
C554
C552
C553
C553
R554
R555
R555
R557
SG574
R561
R556
R561
R556
R1549
R1548
R1548
R1316
R1383
R1384
R1384
R1529
R1528
R1528
R2726
R8416
R8417
R8417
C8401
R8403
R8410
R8401
R8403
R8410
R8401
R8405
R8420
C8402
R8419
R8418
R8411
C4411
R4403
R4412
R4414
R4416
R4419
R4408
R4425
R4423
R4424
R4422
R3377
R3373
R3376
R3375
R3375
R4415
R4417
C9604
R3378
R4409
R4410
R4405
R4406
R4427
R4402
R4407
R4401
R4400
C3550
R9609
R9602
R9602
R9613
R3319
R3318
R3318
C9444
R9473
C9523
R9523
R9518
R9520
R9521
C9506
R9518
R9520
R9521
C9506
C9509
C9504
C9504
R9508
R9419 R9420
R9461
R9460
D9403
R9413 C9412
R9416
R9414
R9415 R9417
C9411
R9412
R9418
R9423
C9420
C9424
C9426
D9401
D9402
R9506
R9505
R9447
C3338
C4400
C597
C594
SG568
D556
R2666
R2664
R9608
R9601
C9621
C3342
C9607
C9707
R9705
R9706
R3372
R3386
R2705
R3834
C3812
R3836
C3811
R3854
R3805
C3826
C3825
C3824
R3806
C3801
C533
R536
C530
R524
R517
C532
SG505
SG506
SG510
SG511
SG507
SG508
C511
C515
C507
C509
R529
R528
R527
R530
C519
C522
C523
C526
R521
C527
R531
R532
R535
R538
C535
C534
C529
C528
R1567
R1568
R1513
R1515
R1516
R1517
R1554
R1555
R1504
D1511
C1504
R1508
R1563
R1564
R1565
R1566
R1545
R1546
R1574
R1573
SG562
R594
R603
C592
SG561
R593
R602
C591
C516
C517
C504
R508
C502
SG514
C506
R509
C503
SG513
SG567
R601
C590
R592
SG560
SG560
R506
R505
R599
R591
C588
SG557
R589
SG559
C599
R600
C536
R587
R583
R537
C601
R519
C510
R516
C508
R512
C505
C514
C513
C512
R511
R515
R518
SG501
SG502
SG503
R520
R522
R514
C525
C531
C611
C603
C604
C3372
C3374
R3357
R2710
R9533
R3502
R9435
C9437
R9405
R9439
R9441
R9410
R9411
R9444
R9463
R9433
R9432
R9434
C9419
R9451
R9449
R9448
R9445
R9504
R9534
R9519
R9501
R9522
C9513
C9408
R9471
R3303
R3316
R3317
R9617
R9618
FB3502
C4410
C4405
R4429
R2711
R1505
VA1501
VA1502
R1503
D1502
D1503
R1547
C1525
R1559
R614
C614
SG556
R613
R595
SG564
R597
C596
C598
R604
R607
C574
R578
SG551
R584
C585
C575
R579
SG552
R585
C586
C569
C576
R580
R586
C587
SG553
C608
R611
C610
SG554
C581
R574
SG555
C582
R575
R9758
R9760
R9761
C9611
R1101
R1102
C1114
C1110
C1109
C1108
L1104
C1107
C1105
C1116
R1124
C1121
R1121
C1119
C1120
C1138
R1107
R1108
R1386
R1385
FB1106
C1140
R1120
R1119
R1110
C1127
C1126
C1125
C1124
R1380
C1381
C1123
R1115
R1314
R1339
R1387
C9570
R9570
C9563
R541
R9469
R9470
R9573
VA9554
VA9553
C9553
C9554
VA9552
VA9551
SG570
R560
SG573
C567
R563
SG572
C558
R562
SG571
C568
R566
C9648
FB9601
C2758
C2759
C2760
C2761
C9581
D559
D1102
D3807
R615
R616
R619
R618
R617
R2749
R3856
C2732
C2734
C2735
C2746
C2747
C9603
C9606
C9654
R2727
IC2701
C9443
P9501
P2705
C2710
C2707
C2762
R2751
FB2708
C2703
FB2702
C2702
FB2712
L2705
C2750
P2703
C2755
C2754
C2752
R9652
R9653
R9650
R9651
R2681
R2675
R2670
R2674
R2671
R2672
P2701
D512
R1578
R1576
R1577
R1126
R1125
L1102
C540
IC540
D540
L9555
VA9557 VA9558
C9582
P9502
R1575
D2707
R2742
C2725
R2729
D562
D561
D560
R2750
R2740
D9404
R9408
R9407
R9406
R9476
R9475
R9472
C9442
C9446
C9447
C9440
Q9403
R1302
R1310
R1312
116
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
Main Unit PWB 3/4 (QPWBXG135WJZZ B)
Side
B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
I
H
G
F
E
D
C
B
A
C1321
D1303
D1304
D1305
R1322
a
C9559
C9564
R9562
C9573
D552
SG577
R577
IC553
Q554
Q553
C562
D558
Q551
Q552
FB612
C615
C2719
R9507
R9537
C9511
R9513
R9512
C9507
C9510
D9502
C9503
C9512
R9401
R9402
C9407
C9436
R9443
R9440
C9429
C9410
FB9403
C9404
C9401
P3302
R3312
R3309
R9438
FB4400
C3325
R3321
C9612
C3512
C3514
C3515
C3516
C3517
C3513
C3518
C3505
C3507
R3504
C3504
C9522
R9757
C3302
FB3301
R9616
R9759
R9759
C1144
C1310
R1307
C1135
C1145
C1129
C1143
C1142
C9579
C9580
SG578
R2650
R2628
R2614
R2624
R2625
C2605
Q2604
Q2602
C2608
FB2603
Q2601
C3379
R3347
C3301
R3374
SC501
D529
IC1509
IC1508
D1514
D1513
Q1505
IC3803
Q3800
FB3811
C3829
C2713
C2715
C3501
C3373
C2712
C2711
C9578
1
5
IC504
D509
D510
FB3813
FB3812
FB3812
IC3802
1
10
11
20
1
10
11
20
LUG101
LUG105
LUG102
LUG104
LUG103
LUG106
1
5
C580
R571
C579
D3809
D3808
D2601
Q2609
Q2610
Q2612
Q2611
Q2607
Q2605
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